Selenium Java 打开新窗口，关闭它，再次控制主窗口
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Selenium Java open new window, close it, and control main window again
提问by user1599401
I find my question to be different than everything that I've searched for because I need to open a new window in my code (not from clicking a link in a UI). So i already have a driver handling my only window, and then I do this:
我发现我的问题与我搜索过的所有问题都不同，因为我需要在我的代码中打开一个新窗口（而不是通过单击 UI 中的链接）。所以我已经有一个驱动程序处理我唯一的窗口，然后我这样做：
//save the handle of the current (only) window open right now
String MainWindowHandle = driver.getWindowHandle();
//open a new firefox window
driver = new FirefoxDriver();
//in the new window, go to the intended page
driver.navigate().to(foo);
//do some stuff in the pop up window..
//close the popup window now
driver.close();
//switch back to the main window. This is where the error is thrown
driver.switchTo().window(MainWindowHandle);
The error is: "org.openqa.selenium.remote.UnreachableBrowserException: Error communicating with the remote browser. It may have died"
错误是：“org.openqa.selenium.remote.UnreachableBrowserException：与远程浏览器通信时出错。它可能已经死了”
What do I need to do to regain control of the initial window?
我需要做什么才能重新获得对初始窗口的控制权？
Thanks in advance.
提前致谢。
采纳答案by JimEvans
You don't. If you need to launch a new instance of the browser (which is what this sounds like), then do that.
你没有。如果您需要启动浏览器的新实例（这听起来像），请执行此操作。
// "url" is an unused variable, simply included here to demonstrate
// that the driver variable is valid and capable of being used.
String url = driver.getCurrentUrl();
// Open a new Firefox window
// Note that here, in your original code, you've set the
// driver variable to another instance of Firefox, which
// means you've orphaned the original browser.
WebDriver driver2 = new FirefoxDriver();
// In the new window, go to the intended page
driver2.navigate().to(foo);
// Do some stuff in the pop up window..
// Close the popup window now
driver2.quit();
// No need to switch back to the main window; driver is still valid.
// Remember that "url" is simply a dummy variable used here to
// demonstrate that the initial driver is still valid.
url = driver.getCurrentUrl();
